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Public Health Disease Control
Health Provider Alerts
California Health Alert Network (CAHAN)
The California Health Alert Network (CAHAN) is the official public health alerting and notification program for California, CAHAN is designed for emergency preparedness information sharing, distribution of pertinent public health related events and alerting materials, dissemination of treatment and prevention guidelines, coordinated disease investigation efforts, preparedness planning, and other initiatives that strengthen state and local preparedness. The priority health communication distribution through the health communication system is ranked into four different levels using the below levels of communications based on the noted definitions.
Enrollment is limited to administration and select staff with emergency preparedness roles in State Agencies, Local Health Jurisdictions and California Department of Public Health (CDPH) licensed Health Care Facilities.
Dear Colleague Letter: Increasing Cases of Syphilis Among Females and of Congenital Syphilis
Sonoma County Public Health (PH) requests your assistance in responding to alarming increases in congenital syphilis in California and Sonoma County. Over the last several years, California has experienced a steep increase in syphilis among females and in congenital syphilis (CS).